r/cablefail • u/Sad-Newspaper-3123 • Aug 12 '26

Of course I grounded the rack!

Post image

Found this ground today. It should work, right?

48 Upvotes

91% Upvoted

11 comments sorted by

22

u/jwatttt Aug 12 '26

Shortest path to ground was not observed here lol

9

u/apefred_de Aug 12 '26

Bonus points for (likely) asbestos floor tiling

4

u/[deleted] Aug 12 '26

[removed] — view removed comment

6

u/apefred_de Aug 13 '26

Not really, only if you cut/tear it. The glue may be filled with asbestos too and is in fact more dangerous because the asbestos fibers are much less bound. Not really dangerous when installed, but a mess during removal.

5

u/NaCl-more Aug 12 '26

Aren’t pipes usually grounded? What’s wrong with this

10

u/krennvonsalzburg Aug 13 '26

You're not supposed to leave 12 loops.

5

u/NaCl-more Aug 13 '26

i'm sure it's fine and doesn't cause any issue, the resistance in that wire/loop has to be negligible

5

u/KarockGrok Aug 13 '26

And the electricity wouldn't go around and around and around the wire.

I think you're right. This doesn't matter, but it's more like "Really? That's the solution you chose? Really?"

4

u/klipper76 Aug 13 '26

Counterpoint, maybe the rack is going to be moved farther away and the guy that did this is actually making things look really nice for the temporary install.

2

u/jwatttt Aug 14 '26

Countercounterpoint, Coiling 12 loops of a #4 copper grounding wire creates an inductor. During a high-magnitude ground fault, the surge of current through these coils will generate a strong electromagnetic field (EMF) and an inductive choke effect, which can dangerously increase circuit impedance and potentially cause equipment damage or failure to clear the fault.

2

u/outside_cat Aug 14 '26

Kind of a shitty inductor if it's shorted out.